CHICAGO--(BUSINESS WIRE)--Fitch Ratings has affirmed Voya Financial, Inc.'s (Voya) Issuer Default Rating (IDR) at 'BBB+', senior debt rating at 'BBB', and junior subordinated debt rating at 'BB+'. The Insurer Financial Strength (IFS) ratings of the U.S. operating entities have also been affirmed at 'A'. A complete list of ratings follows at the end of this release. The Rating Outlook for all ratings is Stable. The affirmation reflects Voya's balance sheet strength and improved debt servicing ca